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Object Oriented Analysis and Design
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An interaction diagram is needed to show messages among objects. The designer wants to emphasize timing and order. Which diagram fits?
Which scenario MOST justifies an “extend” relationship in use case diagram?
Which scenario BEST fits a state machine diagram?
In a modeling session, someone suggests representing a long-running business operation (e.g., “Loan Approval”) as a class. Why is this usually a modeling mistake?
Which situation BEST requires an abstract class instead of an interface?
A system uses message passing between distributed objects. Which architectural style best matches?
A parallel region in a state machine means:
In a ride-sharing system, “Driver” and “Rider” both need access to “TripHistory,” but they must see different levels of detail. Which modeling approach best supports this?
You are modeling a business process involving approval from multiple roles. Which diagram fits best?
A designer argues that “Modeling as a design technique” saves time even if models are later discarded. Which justification is MOST valid?